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Puzzle 10/09/27: A

 
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daj95376



Joined: 23 Aug 2008
Posts: 3854
PostPosted: Mon Sep 27, 2010 6:14 pm    Post subject: Puzzle 10/09/27: A Reply with quote
Code:
 +-----------------------+
 | 8 . . | 1 . . | . 3 . |
 | . . . | . . . | . . 7 |
 | . . 3 | 5 . 7 | . . . |
 |-------+-------+-------|
 | 7 . 6 | 9 3 . | 2 8 5 |
 | . . . | 7 5 . | . 1 9 |
 | . . 1 | . . 8 | 7 . . |
 |-------+-------+-------|
 | . . . | 4 . 9 | . . . |
 | 4 . . | 8 7 . | . 5 1 |
 | . 8 . | 3 1 . | . 2 4 |
 +-----------------------+

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JC Van Hay



Joined: 13 Jun 2010
Posts: 494
Location: Charleroi, Belgium
PostPosted: Mon Sep 27, 2010 10:25 pm    Post subject: Reply with quote
Quote:
XY Xing, pivot at (29)R8C2 : (6)r9c1=(6)r8c6 : => r8c2<>6
X Wing (6)R58 : r12379c67<>6
XY Wing, pivot at (24)R1C6 : (6)r2c4=(6)r5c6 : => r6c4<>6
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Marty R.



Joined: 12 Feb 2006
Posts: 5770
Location: Rochester, NY, USA
PostPosted: Tue Sep 28, 2010 12:49 am    Post subject: Reply with quote
I used six assorted moves, all involving 6, then, mercifully, it ended with an XY-Chain, also eliminating a 6.
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peterj



Joined: 26 Mar 2010
Posts: 974
Location: London, UK
PostPosted: Tue Sep 28, 2010 8:05 am    Post subject: Reply with quote
Try to make up for my recent poor form in spotting w-wings...
Quote:
w-wing(26) ; (6=2)r7c5 - r8c6=r1c6 - (2=6)r1c9 ; r7c9<>6
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